Vulnerability identifier: #VU82529
Vulnerability risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-835
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Glibc
Universal components / Libraries /
Libraries used by multiple products
Vendor: GNU
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop. A remote attacker can cause a denial of service (infinite loop) by performing a look-up on a database while iterating over it, which triggers the file pointer to be reset.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Glibc: 2.21
External links
http://bugzilla.redhat.com/show_bug.cgi?id=1165192
http://rhn.redhat.com/errata/RHSA-2015-0327.html
http://sourceware.org/ml/libc-alpha/2015-02/msg00617.html
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00019.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
http://www.ubuntu.com/usn/USN-2985-2
http://www.ubuntu.com/usn/USN-2985-1
http://security.gentoo.org/glsa/201602-02
http://www.securityfocus.com/bid/73038
http://www.debian.org/security/2016/dsa-3480
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.